Search the Dictionary

To pierce with small holes; to cut the edge of, as cloth or paper, in small scallops or angles.

A fisherman; an angler.

un. Equilateral pitch is where the two sloping sides with the span form an equilateral triangle. -- Pitch of a plane (Carp.), the slant of the cutting iron. -- Pitch pipe, a wind instrument used by choristers in regulating the pitch of a tune. -- Pitch point (Gearing), the point of contact of the pitch lines of two…

r colors which resemble a Scotch plaid; checkered or marked with bars or stripes at right angles to one another; as, plaid muslin.

Metallic armor composed of broad pieces. Mangled . . . through plate and mail. Milton.

a body of men who fired together; also, a small square body of soldiers to strengthen the angles of a hollow square.

A diseased state in plants in which there is an excessive development of small entangled twigs, instead of ordinary branches.

To entangle; to embarrass; to overcome. [Obs.] Plunged and graveled with three lines of Seneca. Sir T. Browne.

An angle in the south transept of Westminster Abbey, London; -- so called because it contains the tombs of Chaucer, Spenser, Dryden, Ben Jonson, Gray, Tennyson, Browning, and other English poets, and memorials to many buried elsewhere.

contrast as possible. -- Polar projection. See under Projection. -- Polar spherical triangle (Spherics), a spherical triangle whose three angular points are poles of the sides of a given triangle. See 4th Pole, 2. -- Polar whale (Zoöl.), the right whale, or bowhead. See Whale.

A combining form or prefix from Gr. poly`s, many; as, polygon, a figure of many angles; polyatomic, having many atoms; polychord, polyconic.

A plane figure having many angles, and consequently many sides; esp., one whose perimeter consists of more than four sides; any figure having many angles. Polygon of forces (Mech.), a polygonal figure, the sides of which, taken successively, represent, in length and direction, several forces acting simultaneously upon…

Having many angles. Polygonal numbers, certain figurate numbers. See under Figurate.

Having many sides, as a solid body. Polyhedral angle, an angle bounded by three or more plane angles having a common vertex.

solving a problem by one or two suppositions; -- called also the rule of trial and error. Angle of position (Astron.), the angle which any line (as that joining two stars) makes with another fixed line, specifically with a circle of declination. -- Double position (Arith.), the method of solving problems by proceeding…

a figure which can not be divided into any other figure more simple than itself, as a triangle, a pyramid, etc. -- Prime meridian (Astron.), the meridian from which longitude is reckoned, as the meridian of Greenwich or Washington. -- Prime minister, the responsible head of a ministry or executive government; applie…

, under Plane. -- Principal of a quadric (Geom.), three planes each of which is at right angles to the other two, and bisects all chords of the quadric perpendicular to the plane, as in an ellipsoid. -- Principal point (Persp.), the projection of the point of sight upon the plane of projection. -- Principal ray (Per…

the difference of dispersive power being compensated by giving them different refracting angles, so that, when placed together so as to have opposite relative positions, a ray of light passed through them is refracted or bent into a new position, but is free from color. -- Nicol's prism, Nicol prism. Etym: [So called…

To extend; -- applied to a line, surface, or solid; as, to produce a side of a triangle.

A projecting part. Especially: (a) The projecting angle of the ventral side of the sacrum where it joins the last lumbar vertebra.